Medicine and Health Sciences Commons^™

Ic3d Classification Of Corneal Dystrophies-Edition 3, Jayne Weiss, Christopher Rapuano, Berthold Seitz, Massimo Busin, Tero Kivelä, Nacim Bouheraoua, Cecilie Bredrup, Ken Nischal, Harshvardhan Chawla, Vincent Borderie, Kenneth Kenyon, Eung Kweon Kim, Hans Ulrik Møller, Francis Munier, Tim Berger, Walter Lisch

Wills Eye Hospital Papers

PURPOSE: The International Committee for the Classification of Corneal Dystrophies (IC3D) was created in 2005 to develop a new classification system integrating current information on phenotype, histopathology, and genetic analysis. This update is the third edition of the IC3D nomenclature.

METHODS: Peer-reviewed publications from 2014 to 2023 were evaluated. The new information was used to update the anatomic classification and each of the 22 standardized templates including the level of evidence for being a corneal dystrophy [from category 1 (most evidence) to category 4 (least evidence)].

RESULTS: Epithelial recurrent erosion dystrophies now include epithelial recurrent erosion dystrophy, category 1 ( …

Prognostic Properties Of Kras Gene Mutation Subtypes In Resected Pancreatic Cancer, Faria Nusrat, Eliyahu Gorgov, Md, Wilbur Bowne, Md, Obehioye Isesele, Akshay Khanna, Harish Lavu, Md, Aditi Jain, Phd, Charles J. Yeo, Md, Avinoam Nevler, Md

Alpha Omega Alpha Research Symposium Posters

Introduction

• Pancreatic ductal adenocarcinoma (PDAC) is an aggressive and therapy-resistant cancer with an overall 5-year survival rate of almost 12%, making it among the most lethal of all major cancers.¹
• PDAC has a distinct genomic profile, with somatic KRAS protooncogene mutations in ~90% of cases.^2,3
• Current literature has not reached a consensus on disease prognosis based on KRAS mutation subtype.^2-5

Belzutifan, Hif-2Α Inhibitor, And Clear Cell Renal Cell Carcinoma With Somatic Von-Hippel-Lindau Loss-Of-Function Mutation., Kok Hoe Chan, Ningjing Li, Ran Lador, Mark Amsbaugh, Anneliese Gonzalez, Putao Cen

Journal Articles

The Von-Hippel-Lindau (VHL) gene, acting as a tumor suppressor, plays a crucial role in the tumorigenesis of clear cell renal cell carcinoma (ccRCC). Approximately 90% of individuals with advanced ccRCC exhibit somatic mutations in the VHL gene. Belzutifan, orally administered small-molecule inhibitor of hypoxia-induced factor-2α, has demonstrated promising efficacy in solid tumors associated with germline loss-of-function mutations in VHL, including ccRCC. However, its impact on cases with somatic or sporadic VHL mutations remains unclear. Here, we present 2 cases where belzutifan monotherapy was employed in patients with advanced ccRCC and somatic loss-of-function mutations in VHL. Both patients exhibited a swift …

Increase In Hnrnpa1 Expression Suffices To Kill Motor Neurons In Transgenic Rats, Xionghao Liu, Tingting Zhang, Qinxue Wu, Cao Huang, Xu-Gang Xia, Hongxia Zhou, Bo Huang

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

A dominant mutation in hnRNPA1 causes amyotrophic lateral sclerosis (ALS), but it is not known whether this mutation leads to motor neuron death through increased or decreased function. To elucidate the relationship between pathogenic hnRNPA1 mutation and its native function, we created novel transgenic rats that overexpressed wildtype rat hnRNPA1 exclusively in motor neurons. This targeted expression of wildtype hnRNPA1 caused severe motor neuron loss and subsequent denervation muscle atrophy in transgenic rats that recapitulated the characteristics of ALS. These findings demonstrate that the augmentation of hnRNPA1 expression suffices to trigger motor neuron degeneration and the manifestation of ALS-like phenotypes. …

Clinical Efficacy Of Onc201 In H3k27m-Mutant Diffuse Midline Gliomas Is Driven By Disruption Of Integrated Metabolic And Epigenetic Pathways., Sriram Venneti, Abed Rahman Kawakibi, Sunjong Ji, Sebastian M. Waszak, Stefan R. Sweha, Mateus Mota, Matthew Pun, Akash Deogharkar, Chan Chung, Rohinton S. Tarapore, Samuel Ramage, Andrew Chi, Patrick Y. Wen, Isabel Arrillaga-Romany, Tracy T. Batchelor, Nicholas A. Butowski, Ashley Sumrall, Nicole Shonka, Rebecca A. Harrison, John De Groot, Minesh Mehta, Matthew D. Hall, Doured Daghistani, Timothy F. Cloughesy, Benjamin M. Ellingson, Kevin Beccaria, Pascale Varlet, Michelle M. Kim, Yoshie Umemura, Hugh Garton, Andrea Franson, Jonathan Schwartz, Rajan Jain, Maureen Kachman, Heidi Baum, Charles F. Burant, Sophie L. Mottl, Rodrigo T. Cartaxo, Vishal John, Dana Messinger, Tingting Qin, Erik Peterson, Peter Sajjakulnukit, Karthik Ravi, Alyssa Waugh, Dustin Walling, Yujie Ding, Ziyun Xia, Anna Schwendeman, Debra Hawes, Fusheng Yang, Alexander R. Judkins, Daniel Wahl, Costas A. Lyssiotis, Daniel De La Nava, Marta M. Alonso, Augustine Eze, Jasper Spitzer, Susanne V. Schmidt, Ryan J. Duchatel, Matthew D. Dun, Jason E. Cain, Li Jiang, Sylwia A. Stopka, Gerard Baquer, Michael S. Regan, Mariella G. Filbin, Nathalie Y R Agar, Lili Zhao, Chandan Kumar-Sinha, Rajen Mody, Arul Chinnaiyan, Ryo Kurokawa, Drew Pratt, Viveka Nand Yadav, Jacques Grill, Cassie Kline, Sabine Mueller, Adam Resnick, Javad Nazarian, Joshua E. Allen, Yazmin Odia, Sharon L. Gardner, Carl Koschmann

Manuscripts, Articles, Book Chapters and Other Papers

UNLABELLED: Patients with H3K27M-mutant diffuse midline glioma (DMG) have no proven effective therapies. ONC201 has recently demonstrated efficacy in these patients, but the mechanism behind this finding remains unknown. We assessed clinical outcomes, tumor sequencing, and tissue/cerebrospinal fluid (CSF) correlate samples from patients treated in two completed multisite clinical studies. Patients treated with ONC201 following initial radiation but prior to recurrence demonstrated a median overall survival of 21.7 months, whereas those treated after recurrence had a median overall survival of 9.3 months. Radiographic response was associated with increased expression of key tricarboxylic acid cycle-related genes in baseline tumor sequencing. ONC201 …

Characteristics And Prognostic Impact Of Idh Mutations In Aml: A Cog, Swog, And Ecog Analysis., Sara Zarnegar-Lumley, Todd A. Alonzo, Robert B. Gerbing, Megan Othus, Zhuoxin Sun, Rhonda E. Ries, Jim Wang, Amanda Leonti, Matthew A. Kutny, Fabiana Ostronoff, Jerald P. Radich, Frederick R. Appelbaum, Era L. Pogosova-Agadjanyan, Kristen O'Dwyer, Martin S. Tallman, Mark Litzow, Ehab Atallah, Todd M. Cooper, Richard A. Aplenc, Omar Abdel-Wahab, Alan S. Gamis, Selina Luger, Harry Erba, Ross Levine, E Anders Kolb, Derek L. Stirewalt, Soheil Meshinchi, Katherine Tarlock

Manuscripts, Articles, Book Chapters and Other Papers

Somatic mutations in isocitrate dehydrogenase (IDH) genes occur frequently in adult acute myeloid leukemia (AML) and less commonly in pediatric AML. The objective of this study was to describe the prevalence, mutational profile, and prognostic significance of IDH mutations in AML across age. Our cohort included 3141 patients aged betweenChildren's Cancer Group/Children's Oncology Group (n = 1872), Southwest Oncology Group (n = 359), Eastern Cooperative Oncology Group (n = 397) trials, and in Beat AML (n = 333) and The Cancer Genome Atlas (n = 180) genomic characterization cohorts. We retrospectively analyzed patients in 4 age groups (age range, n): …

Potassium Channel Subfamily T Member 1(Kcnt1) Pathological Variant Causing Epilepsy Of Infancy With Migrating Focal Seizures: A Case Report, Prem Chand, Meher Angez, Ayesha Nasir Hameed, Salman Kirmani

Department of Paediatrics and Child Health

Pathological mutation of potassium channel subfamily T member 1 (KCNT1) gene causes an autosomal dominant disorder characterised by secondarily generalised seizures/migratory focal seizure, cyanosis, and dysmorphic features. We report the case of a five-month old male with pathological KCNT1 variant who presented with focal clonic seizures, Mongol spots, and grade two systolic murmur at the left lower sternal border and loud P2. The seizures were refractory to most anti-epileptic drugs but showed some response to Valproic acid. This case demonstrated that EIMFS is a grave infantile epileptic encephalopathy which is refractory to anti epileptic drugs and can present with a …

Comprehensive Molecular And Clinical Characterization Of Nup98 Fusions In Pediatric Acute Myeloid Leukemia, Eline J M Bertrums, Jenny L. Smith, Lauren Harmon, Rhonda E. Ries, Yi-Cheng J. Wang, Todd A. Alonzo, Andrew J. Menssen, Karen M. Chisholm, Amanda R. Leonti, Katherine Tarlock, Fabiana Ostronoff, Era L. Pogosova-Agadjanyan, Gertjan J L Kaspers, Henrik Hasle, Michael Dworzak, Christiane Walter, Nora Muhlegger, Cristina Morerio, Laura Pardo, Betsy Hirsch, Susana Raimondi, Todd M. Cooper, Richard Aplenc, Alan S. Gamis, Edward A. Kolb, Jason E. Farrar, Derek Stirewalt, Xiaotu Ma, Tim I. Shaw, Scott N. Furlan, Lisa Eidenschink Brodersen, Michael R. Loken, Marry M. Van Den Heuvel-Eibrink, C Michel Zwaan, Timothy J. Triche, Bianca F. Goemans, Soheil Meshinchi

Manuscripts, Articles, Book Chapters and Other Papers

NUP98 fusions comprise a family of rare recurrent alterations in AML, associated with adverse outcomes. In order to define the underlying biology and clinical implications of this family of fusions, we performed comprehensive transcriptome, epigenome, and immunophenotypic profiling of 2,235 children and young adults with AML and identified 160 NUP98 rearrangements (7.2%), including 108 NUP98-NSD1 (4.8%), 32 NUP98-KDM5A (1.4%) and 20 NUP98-X cases (0.9%) with 13 different fusion partners. Fusion partners defined disease characteristics and biology; patients with NUP98-NSD1 or NUP98-KDM5A had distinct immunophenotypic, transcriptomic, and epigenomic profiles. Unlike the two most prevalent NUP98 fusions, NUP98-X variants are typically not …

Phenotype And Genotype Heterogeneity Of Pla2g6-Associated Neurodegeneration In A Cohort Of Pediatric And Adult Patients, Ali Zare Dehnavi, Maryam Bemanalizadeh, Seyyed Mohammad Kahani, Mahmoud Reza Ashrafi, Mohammad Rohani, Mehran Beiraghi Toosi, Morteza Heidari, Sareh Hosseinpour, Behnam Amini, Shaghayegh Zokaei, Zahra Rezaei, Hajar Aryan, Man Amanat, Hassan Vahidnezhad, Pouria Mohammadi, Masoud Garshasbi, Ali Reza Tavasoli

Department of Dermatology and Cutaneous Biology Faculty Papers

BACKGROUND: Phospholipase-associated neurodegeneration (PLAN) caused by mutations in the PLA2G6 gene is a rare neurodegenerative disorder that presents with four sub-groups. Infantile neuroaxonal dystrophy (INAD) and PLA2G6-related dystonia-parkinsonism are the main two subtypes. In this cohort, we reviewed clinical, imaging, and genetic features of 25 adult and pediatric patients harboring variants in the PLA2G6.

METHODS: An extensive review of the patients' data was carried out. Infantile Neuroaxonal Dystrophy Rating Scale (INAD-RS) was used for evaluating the severity and progression of INAD patients. Whole-exome sequencing was used to determine the disease's underlying etiology followed by co-segregation analysis using Sanger sequencing. In …

Long Noncoding Rna Expression Independently Predicts Outcome In Pediatric Acute Myeloid Leukemia., Jason E. Farrar, Jenny L. Smith, Megan Othus, Benjamin J. Huang, Yi-Cheng Wang, Rhonda Ries, Tiffany Hylkema, Era L. Pogosova-Agadjanyan, Sneha Challa, Amanda Leonti, Timothy I. Shaw, Timothy J. Triche, Alan S. Gamis, Richard Aplenc, E Anders Kolb, Xiaotu Ma, Derek L. Stirewalt, Todd A. Alonzo, Soheil Meshinchi

Manuscripts, Articles, Book Chapters and Other Papers

Purpose: Optimized strategies for risk classification are essential to tailor therapy for patients with biologically distinctive disease. Risk classification in pediatric acute myeloid leukemia (pAML) relies on detection of translocations and gene mutations. Long noncoding RNA (lncRNA) transcripts have been shown to associate with and mediate malignant phenotypes in acute myeloid leukemia (AML) but have not been comprehensively evaluated in pAML.

Methods: To identify lncRNA transcripts associated with outcomes, we evaluated the annotated lncRNA landscape by transcript sequencing of 1,298 pediatric and 96 adult AML specimens. Upregulated lncRNAs identified in the pAML training set were used to establish a regularized …

A Rare Metastatic Mesenteric Malignant Pecoma With Tsc2 Mutation Treated With Palliative Surgical Resection And Nab-Sirolimus: A Case Report, Luke Meredith, Timothy Chao, Avinoam Nevler, Atrayee Basu Mallick, Rajan Singla, Peter Mccue, Wilbur Bowne, Wei Jiang, Md, Phd

Kimmel Cancer Center Faculty Papers

BACKGROUND: Malignant perivascular epithelioid cell tumors (PEComas) are exceedingly rare malignant mesenchymal neoplasms with characteristic morphological and immunohistochemical (IHC) patterns. However, some malignant PEComas are poorly differentiated with atypical histopathological features, making a definitive diagnosis difficult. PEComas are most commonly found in females and often show either TSC1 or TSC2 alterations, which result in the activation of the mTOR pathway, or TFE3 fusions. Given these molecular characteristics, mTOR inhibitors have recently been approved by the FDA in the treatment of malignant PEComas, particularly in those with TSC1/2 alterations. Therefore, molecular analyses may be helpful for both the diagnostic workup of …

Ad-Syn-Net: Systematic Identification Of Alzheimer's Disease-Associated Mutation And Co-Mutation Vulnerabilities Via Deep Learning, Xingxin Pan, Zeynep H Coban Akdemir, Ruixuan Gao, Xiaoqian Jiang, Gloria M Sheynkman, Erxi Wu, Jason H Huang, Nidhi Sahni, S Stephen Yi

Journal Articles

Alzheimer's disease (AD) is one of the most challenging neurodegenerative diseases because of its complicated and progressive mechanisms, and multiple risk factors. Increasing research evidence demonstrates that genetics may be a key factor responsible for the occurrence of the disease. Although previous reports identified quite a few AD-associated genes, they were mostly limited owing to patient sample size and selection bias. There is a lack of comprehensive research aimed to identify AD-associated risk mutations systematically. To address this challenge, we hereby construct a large-scale AD mutation and co-mutation framework ('AD-Syn-Net'), and propose deep learning models named Deep-SMCI and Deep-CMCI configured …

The Mutational Landscape In Chronic Myelomonocytic Leukemia And Its Impact On Allogeneic Hematopoietic Cell Transplantation Outcomes: A Center For Blood And Marrow Transplantation Research (Cibmtr) Analysis, Matthew Mei, Raju Pillai, Soyoung Kim, Noel Estrada-Merly, Michelle Afkhami, Lixin Yang, Zhuo Meng, Muhammad Bilal Abid, Mahmoud Aljurf, Ulrike Bacher, Amer Beitinjaneh, Christopher Bredeson, Jean-Yves Cahn, Jan Cerny, Edward Copelan, Corey Cutler, Zachariah Defilipp, Miguel Angel Diaz Perez, Nosha Farhadfar, César O Freytes, Shahinaz M Gadalla, Siddhartha Ganguly, Robert Peter Gale, Usama Gergis, Michael R Grunwald, Betty K Hamilton, Shahrukh Hashmi, Gerhard C Hildebrandt, Hillard M Lazarus, Mark Litzow, Reinhold Munker, Hemant S Murthy, Sunita Nathan, Taiga Nishihori, Sagar S Patel, David Rizzieri, Sachiko Seo, Mithun Vinod Shah, Melhem Solh, Leo F Verdonck, Ravi Vij, Ronald M Sobecks, Betul Oran, Bart L Scott, Wael Saber, Ryotaro Nakamura

Department of Medical Oncology Faculty Papers

Somatic mutations are recognized as an important prognostic factor in chronic myelomonocytic leukemia (CMML). However, limited data are available regarding their impact on outcomes after allogeneic hematopoietic cell transplantation (HCT). In this registry analysis conducted in collaboration with the Center for International Blood and Marrow Transplantation Registry database/sample repository, we identified 313 adult patients with CMML (median age: 64 years, range, 28- 77) who underwent allogeneic HCT during 2001-2017 and had an available biospecimen in the form of a peripheral blood sample obtained prior to the start of conditioning. In multivariate analysis, a CMML-specific prognostic scoring system (CPSS) score of …

Patient With Multiple Genetically Distinct Thyroid Nodules Including Papillary Thyroid Carcinoma Harboring Novel Ywhag-Braf Fusion, Ruihe Lin, Zi-Xuan Wang, Elizabeth Cottrill, Nitika Badjatia, Stacey Gargano

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Next-generation sequencing (NGS) analysis of thyroid samples aids in risk stratification of cytologically indeterminate nodules and contributes to our understanding of molecular mechanisms in thyroid neoplasia. Several genes, including BRAF, RAS, and EIF1AX, are known to play a role in thyroid tumorigenesis. Here we report a case of papillary thyroid carcinoma (PTC) in which a single lesion harbored a novel YWHAG-BRAF fusion and EIF1AX mutation and displayed mixed morphological findings. The patient is a 74-year-old female with multiple incidentally discovered thyroid nodules, two of which were sampled by ultrasound-guided fine needle aspiration (FNA). Cytologic diagnosis for both nodules was suspicious …

Mutation And Variant Of Coronavirus Disease 2019 (Covid-19): Review Of Current Literatures, Adityo Susilo, Chyntia Olivia Maurine Jasirwan, Syahidatul Wafa, Suzy Maria, Wulyo Rajabto, Akhmadu Muradi, Ihza Fachriza, Myranda Zahrah Putri, Stacy Gabriella

Jurnal Penyakit Dalam Indonesia

Since March 2020, the Coronavirus Disease 2019 (COVID-19) pandemic has engulfed the world, including Indonesia, for nearly two years. SARS-CoV-2 has undergone several mutations during its evolution as a pathogen, resulting in various variants of global concern. Variants of this virus are suspected to impede the outbreak resolution and possibly causing the outbreak to spiral out of control. There is still considerable debate and research underway regarding the new SARS-CoV-2 variants. Rapid transmission mechanisms and widespread vaccination coverage have accelerated the virus’s mutation rate and resulted in numerous new variants. To date, this has resulted in the discovery of a …

Clinical Utility Of Anti-Mullerian Hormone In Pediatrics, Roopa Kanakatti Shankar, Tazim Dowlut-Mcelroy, Andrew Dauber, Veronica Gomez-Lobo

Pediatrics Faculty Publications

CONTEXT: Anti-Mullerian hormone (AMH) was originally described in the context of sexual differentiation in the male fetus but has gained prominence now as a marker of ovarian reserve and fertility in females. In this mini-review, we offer an updated synopsis on AMH and its clinical utility in pediatric patients.

DESIGN AND RESULTS: A systematic search was undertaken for studies related to the physiology of AMH, normative data, and clinical role in pediatrics. In males, AMH, secreted by Sertoli cells, is found at high levels prenatally and throughout childhood and declines with progression through puberty to overlap with levels in females. …

Determinants Of Virus Variation, Evolution, And Host Adaptation, Katherine Latourrette, Hernan Garcia-Ruiz

Nebraska Center for Virology: Faculty Publications

Virus evolution is the change in the genetic structure of a viral population over time and results in the emergence of new viral variants, strains, and species with novel biological properties, including adaptation to new hosts. There are host, vector, environmental, and viral factors that contribute to virus evolution. To achieve or fine tune compatibility and successfully establish infection, viruses adapt to a particular host species or to a group of species. However, some viruses are better able to adapt to diverse hosts, vectors, and environments. Viruses generate genetic diversity through mutation, reassortment, and recombination. Plant viruses are exposed to …

Clinical Laboratory Testing Practices In Diffuse Gliomas Prior To Publication Of 2021 World Health Organization Classification Of Central Nervous System Tumors, Shakti H. Ramkissoon, Helen Fernandes, Dolores H. Lopez-Terrada, Meera R. Hameed, Dimitri G. Trembath, Julia A. Bridge, Neal I. Lindeman, Rhona J. Souers, Patricia Vasalos, Daniel J Brat, Joel T. Moncur

Journal Articles: Pathology and Microbiology

CONTEXT.—: Integration of molecular data into glioma classification supports diagnostic, prognostic, and therapeutic decision-making; however, testing practices for these informative biomarkers in clinical laboratories remain unclear.

OBJECTIVE.—: To examine the prevalence of molecular testing for clinically relevant biomarkers in adult and pediatric gliomas through review of a College of American Pathologists proficiency testing survey prior to the release of the 2021 World Health Organization Classification of Central Nervous System Tumors.

DESIGN.—: College of American Pathologists proficiency testing 2020 survey results from 96 laboratories performing molecular testing for diffuse gliomas were used to determine the use of testing for molecular biomarkers …

Patient-Derived Ipscs Link Elevated Mitochondrial Respiratory Complex I Function To Osteosarcoma In Rothmund-Thomson Syndrome, Brittany E Jewell, An Xu, Dandan Zhu, Mo-Fan Huang, Linchao Lu, Mo Liu, Erica L Underwood, Jun Hyoung Park, Huihui Fan, Julian A Gingold, Ruoji Zhou, Jian Tu, Zijun Huo, Ying Liu, Weidong Jin, Yi-Hung Chen, Yitian Xu, Shu-Hsia Chen, Nino Rainusso, Nathaniel K Berg, Danielle A Bazer, Christopher Vellano, Philip Jones, Holger K Eltzschig, Zhongming Zhao, Benny Abraham Kaipparettu, Ruiying Zhao, Lisa L Wang, Dung-Fang Lee

Journal Articles

Rothmund-Thomson syndrome (RTS) is an autosomal recessive genetic disorder characterized by poikiloderma, small stature, skeletal anomalies, sparse brows/lashes, cataracts, and predisposition to cancer. Type 2 RTS patients with biallelic RECQL4 pathogenic variants have multiple skeletal anomalies and a significantly increased incidence of osteosarcoma. Here, we generated RTS patient-derived induced pluripotent stem cells (iPSCs) to dissect the pathological signaling leading to RTS patient-associated osteosarcoma. RTS iPSC-derived osteoblasts showed defective osteogenic differentiation and gain of in vitro tumorigenic ability. Transcriptome analysis of RTS osteoblasts validated decreased bone morphogenesis while revealing aberrantly upregulated mitochondrial respiratory complex I gene expression. RTS osteoblast metabolic assays …

Full Issue: The International Undergraduate Journal Of Health Sciences, Volume 1, Issue 1, June 2021

International Undergraduate Journal of Health Sciences

The full June 2021 issue (Volume 1, Issue 1) of the International Undergraduate Journal of Health Sciences

Phenotype Expression Variability In Children With Gabrb3 Heterozygous Mutations., Abdulhafeez M. Khair, Alana E. Salvucci

Department of Pediatrics Faculty Papers

GABRB3 gene is a recently identified gene located in 15q12 chromosome and encodes for gamma-aminobutyric acid (GABA) receptor subunit beta-3 protein, which is linked to the GABAA receptor. The gene is believed to share a role in inhibitory GABAergic synapses, GABA iron-gated channel function, and possible cellular response to histamine. The β3 subunit is expressed in cerebral grey matter, thalami, hippocampi, and cerebellum, among other structures. Faulty GABRB3 function is linked to several neurological disorders and clinical syndromes. However, the spectrum of such disorders is not yet well known. We present three case reports highlighting the potentially expanding clinical phenotype …

Dach1 Mutation Frequency In Endometrial Cancer Is Associated With High Tumor Mutation Burden, Mckayla J. Riggs, Nan Lin, Chi Wang, Dava W. Piecoro, Rachel W. Miller, Oliver A. Hampton, Mahadev Rao, Frederick R. Ueland, Jill M. Kolesar

Obstetrics and Gynecology Faculty Publications

OBJECTIVE: DACH1 is a transcriptional repressor and tumor suppressor gene frequently mutated in melanoma, bladder, and prostate cancer. Loss of DACH1 expression is associated with poor prognostic features and reduced overall survival in uterine cancer. In this study, we utilized the Oncology Research Information Exchange Network (ORIEN) Avatar database to determine the frequency of DACH1 mutations in patients with endometrial cancer in our Kentucky population.

METHODS: We obtained clinical and genomic data for 65 patients with endometrial cancer from the Markey Cancer Center (MCC). We examined the clinical attributes of the cancers by DACH1 status by comparing whole-exome sequencing (WES), …

Arrhythmogenic Right Ventricular Cardiomyopathy In Patients With Biallelic Jup-Associated Skin Fragility., Hassan Vahidnezhad, Leila Youssefian, Masoomeh Faghankhani, Nikoo Mozafari, Amir Hossein Saeidian, Fatemeh Niaziorimi, Fahimeh Abdollahimajd, Soheila Sotoudeh, Fateme Rajabi, Liaosadat Mirsafaei, Zahra Alizadeh Sani, Lu Liu, Alyson Guy, Sirous Zeinali, Ariana Kariminejad, Reginald T. Ho, John A Mcgrath, Jouni Uitto

Department of Dermatology and Cutaneous Biology Faculty Papers

Arrhythmogenic right ventricular cardiomyopathy (ARVC), with skin manifestations, has been associated with mutations in JUP encoding plakoglobin. Genotype-phenotype correlations regarding the penetrance of cardiac involvement, and age of onset have not been well established. We examined a cohort of 362 families with skin fragility to screen for genetic mutations with next-generation sequencing-based methods. In two unrelated families, a previously unreported biallelic mutation, JUP: c.201delC; p.Ser68Alafs*92, was disclosed. The consequences of this mutation were determined by expression profiling both at tissue and ultrastructural levels, and the patients were evaluated by cardiac and cutaneous work-up. Whole-transcriptome sequencing by RNA-Seq revealed JUP as …

A Novel Sting1 Variant Causes A Recessive Form Of Sting-Associated Vasculopathy With Onset In Infancy (Savi)., Bin Lin, Roberta Berard, Abdulrahman Al Rasheed, Buthaina Aladba, Philip J Kranzusch, Maggie Henderlight, Alexi Grom, Dana Kahle, Sofia Torreggiani, Alexander G Aue, Jacob Mitchell, Adriana A De Jesus, Grant S Schulert, Raphaela Goldbach-Mansky

Paediatrics Publications

No abstract provided.

Combating Acquired Resistance To Mapk Inhibitors In Melanoma By Targeting Abl1/2-Mediated Reactivation Of Mek/Erk/Myc Signaling., Rakshamani Tripathi, Zulong Liu, Aditi Jain,, Anastasia Lyon, Christina Meeks, Dana Richards, Jinpeng Liu, Daheng He, Chi Wang, Marika Nespi, Andrey Rymar, Peng Wang, Melissa Wilson, Rina Plattner

Department of Medical Oncology Faculty Papers

Metastatic melanoma remains an incurable disease for many patients due to the limited success of targeted and immunotherapies. BRAF and MEK inhibitors reduce metastatic burden for patients with melanomas harboring BRAF mutations; however, most eventually relapse due to acquired resistance. Here, we demonstrate that ABL1/2 kinase activities and/or expression are potentiated in cell lines and patient samples following resistance, and ABL1/2 drive BRAF and BRAF/MEK inhibitor resistance by inducing reactivation of MEK/ERK/MYC signaling. Silencing/inhibiting ABL1/2 blocks pathway reactivation, and resensitizes resistant cells to BRAF/MEK inhibitors, whereas expression of constitutively active ABL1/2 is sufficient to promote resistance. Significantly, nilotinib (2^{nd …}

Genomic Characterization Of Malignant Progression In Neoplastic Pancreatic Cysts, Michaël Noë, Noushin Niknafs, Catherine G Fischer, Wenzel M Hackeng, Violeta Beleva Guthrie, Waki Hosoda, Marija Debeljak, Eniko Papp, Vilmos Adleff, James R White, Claudio Luchini, Antonio Pea, Aldo Scarpa, Giovanni Butturini, Giuseppe Zamboni, Paola Castelli, Seung-Mo Hong, Shinichi Yachida, Nobuyoshi Hiraoka, Anthony J Gill, Jaswinder S Samra, G Johan A Offerhaus, Anne Hoorens, Joanne Verheij, Casper Jansen, N Volkan Adsay, Wei Jiang, Jordan Winter, Jorge Albores-Saavedra, Benoit Terris, Elizabeth D Thompson, Nicholas J Roberts, Ralph H Hruban, Rachel Karchin, Robert B Scharpf, Lodewijk A A Brosens, Victor E Velculescu, Laura D Wood

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Intraductal papillary mucinous neoplasms (IPMNs) and mucinous cystic neoplasms (MCNs) are non-invasive neoplasms that are often observed in association with invasive pancreatic cancers, but their origins and evolutionary relationships are poorly understood. In this study, we analyze 148 samples from IPMNs, MCNs, and small associated invasive carcinomas from 18 patients using whole exome or targeted sequencing. Using evolutionary analyses, we establish that both IPMNs and MCNs are direct precursors to pancreatic cancer. Mutations in SMAD4 and TGFBR2 are frequently restricted to invasive carcinoma, while RNF43 alterations are largely in non-invasive lesions. Genomic analyses suggest an average window of over three …

Transient Hyponatremia Of Prematurity Caused By Mild Bartter Syndrome Type Ii: A Case Report., Subhrata Verma, Rahul Chanchlani, Victoria Mok Siu, Guido Filler

Paediatrics Publications

BACKGROUND: Bartter syndrome subtypes are a group of rare renal tubular diseases characterized by impaired salt reabsorption in the tubule, specifically the thick ascending limb of Henle's loop. Clinically, they are characterized by the association of hypokalemic metabolic alkalosis, hypercalciuria, nephrocalcinosis, increased levels of plasma renin and aldosterone, low blood pressure and vascular resistance to angiotensin II. Bartter syndrome type II is caused by mutations in the renal outer medullary potassium channel (ROMK) gene (KCNJ1), can present in the newborn period and typically requires lifelong therapy.

CASE PRESENTATION: We describe a case of a prematurely born female infant presenting with …

Effects Of A Postnatal Atrx Conditional Knockout In Neurons On Autism-Like Behaviours In Male And Female Mice., Nicole Martin-Kenny, Nathalie G Bérubé

Paediatrics Publications

BACKGROUND: Alpha-thalassemia/mental retardation, X-linked, or ATRX, is an autism susceptibility gene that encodes a chromatin remodeler. Mutations of ATRX result in the ATR-X intellectual disability syndrome and have been identified in autism spectrum disorder (ASD) patients. The mechanisms by which ATRX mutations lead to autism and autistic-like behaviours are not yet known. To address this question, we generated mice with postnatal Atrx inactivation in excitatory neurons of the forebrain and performed a battery of behavioural assays that assess autistic-like behaviours.

METHODS: Male and female mice with a postnatal conditional ablation of ATRX were generated using the Cre/lox system under the …

A Step Towards Personalizing Next Line Therapy For Resected Pancreatic And Related Cancer Patients: A Single Institution's Experience, Cinthya Y. Lowder, Teena Dhir, Austin B. Goetz, Henry L. Thomsett, Joseph Bender, Talar Tatarian, Subha Madhavan, Emanuel F. Petricoin, Edik Blais, Harish Lavu, Jordan M. Winter, James Posey Iii, Jonathan Brody, Michael J. Pishvaian, Charles J. Yeo

Department of Surgery Faculty Papers

Background: There is a lack of precision medicine in pancreatic ductal adenocarcinoma (PDA) and related cancers, and outcomes for patients with this diagnosis remain poor despite decades of research investigating this disease. Therefore, it is necessary to explore novel therapeutic options for these patients who may benefit from personalized therapies.

Objective: Molecular profiling of hepatopancreaticobiliary malignancies at our institution, including but not limited to PDA, was initiated to assess the feasibility of incorporating molecular profiling results into patient oncological therapy planning.

Methods: All eligible patients from Thomas Jefferson University (TJU) with hepatopancreaticobiliary tumors including PDA, who agreed to molecular testing …

Growth Hormone Deficiency In Megalencephaly-Capillary Malformation Syndrome: An Association With Activating Mutations In Pik3ca, Shanlee Davis, Meredith A Ware, Jordan Zeiger, Matthew A Deardorff, Katheryn Grand, Adda Grimberg, Stephanie Hsu, Megan Kelsey, Shideh Majidi, Revi P Matthew, Melanie Napier, Natalie Nokoff, Chitra Prasad, Andrew C Riggs, Margaret L Mckinnon, Ghayda Mirzaa

Paediatrics Publications

Megalencephaly-capillary malformation syndrome (MCAP) is a brain overgrowth disorder characterized by cortical malformations (specifically polymicrogyria), vascular anomalies, and segmental overgrowth secondary to somatic activating mutations in the PI3K-AKT-MTOR pathway (PIK3CA). Cases of growth failure and hypoglycemia have been reported in patients with MCAP, raising the suspicion for unappreciated growth hormone (GH) deficiency. Here we report an observational multicenter study of children with MCAP and GH deficiency. Eleven participants were confirmed to have GH deficiency, all with very low or undetectable circulating concentrations of insulin-like growth factor-1 and insulin-like growth factor binding protein-3. Seven underwent GH stimulation testing and all had …